can someone please help with Piece-Wise Defined functions : )

Answer:
b
Step-by-step explanation:
the lower circle is empty, marking that 2 isn't covered in the function. but it I'd covered by the next part, since the upper circle is filled.
x+1 for all x smaller than 2 in just read from the picture. c and d make completely no sense, and the distinction to a lies in the explanation above
(would indeed appreciate the brainliest if you appreciate the work)